A group led by Caesars Entertainment that has a license to operate a Baltimore casino has also pledged to support the pro-expansion cause.

Question 7 on Maryland’s ballot would allow a new casino in Prince George’s County, as well as Las Vegas-style table games, such as black jack and roulette, at the state’s five previously authorized slots venues.

Penn, which already owns one casino in Maryland, would be eligible to bid for the Prince George’s license and has proposed putting a casino at Rosecroft Raceway.

But the company argues the deck is stacked against Rosecroft because Prince George’s County Executive Rushern L. Baker III (D) and others have championed National Harbor as a site.

Penn also owns a casino in Charles Town, W.Va., that stands to lose more of its customers from Maryland if gambling expands in the Free State.

While Caesars would not benefit from another competitor, the company has said it supports the expanded gambling plan because it would allow its Baltimore facility to have table games and a more favorable tax rate.

John Wagner is a national reporter who leads The Post's new breaking political news team. He previously covered the Trump White House. During the 2016 presidential election, he focused on the Democratic campaigns of Hillary Clinton, Bernie Sanders and Martin O’Malley. He also chronicled Maryland government for more than a decade.